Canada



(No Model.)

a. & R. KENNEDY. AUTOMATIC? PERPORATOR FOR PRINTING" PRESSES. V No. 364,021. Patented May 31, 1887.

. b WITNESSES:

ATTORNEYS.

: UNITED STATES ATENT FFicE.

GEORGE KENNEDY AND ROBERT KENNEDY, OF NEYV WESTMINSTER,

I BRITISH COLUMBIA, CANADA.

AUTOMATIC PERFORATOR FOR PRlNTlNGv-PRESSES.

SPECIFICATION forming part of Letters Patent No. 364,021, datedMay 31, 1887.

Application filed May 25,1886. Serial No. 203,208. (No model.) Patented in England August 10. 1886, No. 10,193; in Belgium August 10, 1886, No. 74,183; in Canada August 20, 1886, No. 24.767, and in France August 27, 1856, No. 178,204.

To all whom it may concern:

Be it known that we, GEORGE KENNEDY and ROBERT KENNEDY, both of New Westminster, in the Province of British Columbia and Dominion of Canada, have invented anew and Improved Automatic Perforator for Printing-Presses, (for which Letters Patent of the following countries have been received, viz: Great Britain, No. 10,193, August 10, 1886; Canada, No. 24,7 67, August 20, 1886; Belgium, No. 74,183, August 10, 1886; France, N 0. 178,204, August 27, 1886,) of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which Figure 1 is a vertical transverse section of a portion of a printing-press, showing the application of our invention. Fig. 2 is a detail sectional perspective view of apart of our improved perforator. Figs. 3 and 4 represent different forms of yielding contacts for working the perforator. Fig. 5 is a detail view of the end of the hollow rule, showing the lever-' case.

' Similar letters of reference indicate corresponding parts in the different figures of the drawings. j

The object of our invention is to provide for printing-presses a device for perforating paper in the operation of printing, which will be raised up into position to be engaged by the paper while the paper is being printed, and will be dropped down below the surface of the type when the form is inked.

Our invention consists in ahollow rule containing a serrated cutter mounted on series of links to give it a parallel motion, and in the combination therewith of an angled lever pivoted in the hollow rule and arranged to be engaged by the yielding contact carried by the platen of the press.

The hollow rule A is formed of metal strips a, connectedtogether in any convenient way, with a back piece, b, interposed between the metal strips a, the free edges of the strips being provided with inwardly-projecting lips c, leaving between them anarrow slit, d. The strips a. are preferably clamped together by clips 8, which are received. in recesses in the sides of the strips a, and which may be removed whenever it is desirable to clean the perforator; but we do not confine ourselves to this particular method of holding the parts together. In the hollow rule 'th-usfor-med is supported a serrated knife-edged cutter, B, upon links e, which are pivoted to the back of the cutter and to the strip 1), forming the back of the hollow rule A. In the present case there are three such links; but this number may be increased or diminished as circumstances may require. One end of the cutteris pressed by a spring, f, abutting against the closed end got the hollow rule A. The oppo- I site end of the cutter is widened and provided at its inner corner with a concave notch, h, for receiving the'rounded end '5 of an angled lever, 0, pivoted on the pin j, extending through the hollow rule A. The outer end of the angled lever 0 projects beyond the end of the hollow rule A in position to be engaged by the yielding contact-piece D, carried by the platen, and is protected from the ink-roller and from injury by the hood to, projecting from the hollow rule.

The yielding contact D consists of a trapezoidal block, 7c, secured to the, center of a bowed spring, I, which is held in place on the supporting-plate m by clips n, extending over the ends of the spring and secured to the edges of the plate. The ends of the spring are slotted to receive pins 0, which project from the clips at into the slots of the spring. The edge of the supporting-plate m is provided with a right-angled lip, p, which isreceived between the blanket q-on the platen E and the frame F, surrounding the platen and holding the blanket gin place. The block is in this manner held at the edge of I the platen in position to'engage the outer end of the angled lever O.

WVhere the press is not provided with the frame F for holding the blanket in position, the yielding contact is held in place by pointed pins 1', projecting from the edge of the plate m, in lieu of the lip 1). These pins are inserted in the blanket and serve to retain the yielding contact in position for use.

The perforating device is clamped in the form in the chase, in the same manner as an ordinaryrule,in the position in the form atwhich the perforations in the printed sheet are dep the face of the type the yielding contact D strikes the outer end of the angled lever G,

turning it on its pivot, thus swinging the cutter B forward and outward on the links 0, as

indicated in dotted lines, causing the serrated edge of the cutter to project above the face of the type sufliciently to insure the perforation of the paper at the desired point when the paper is brought into contact with the face of the type to receive the impression.

When theplaten, together with the printed paper, is removed'from the type, the yielding contact D is also removed from the end of the angled lever and the springf pushes the cutter B forward, causing it to swing on the links eand retreat within the hollow rule A, so that when the form is inked the inking-rollers will pass over the cutter without being injured thereby. I

The employment of the yielding contact D permits of applying the perforator to the press without nice adjustments, as the spring Z will allow the platen to move forward if the lever Oshould strike the chase G before the platen has completed its excursion.

It is obvious that a number of our improved perforators may be applied in asingle form, if desirable.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a perforating attachment for printingpresses, the combination of the hollow rule A, the serrated cutter B, the links 6, pivoted in the rule and pivotally connected with the cutter, the spring f, arranged to withdraw the cutter within the rule, the angled lever C, pivoted in the rule and adapted to engage the end of the cutter, and a contact carried by the platen for engagement with the angled lever,

substantially as herein shown and described. 7

2. The combination of the hollow rule A, the serrated cutter B, links e, pivoted to the cutter and to the back of the hollowrule, the spring f, the angled lever C, pivoted in the hollow rule, and the yielding contact D, formed of the spring Z, carrying the block k, the baseplate m, and the fastening device for securing it to the platen, as described.

3. In a perforating attachment to printingpresses, the combination, with the hollow rule A and cutter-operating lev'er C, of the hood a, attached to the hollow rule and inclosing the outer end of the lever, substantially as herein shown and described.

1 4. The combination, with the hollow rule and the cutter mounted therein, of a yielding contact carried by the platen of the press and constructed to throw the cutter outward, substantially as set forth.

5. The combination, with hollow rule and the cutter mounted therein, of a yielding contact comprising a bowed spring and an incline block on the central part of its upper surface, substantially as set forth.

6. The combination, with the rule and the cutter,of the platen and its surrounding frame and the contact comprising the bowed spring, the inclined block, the base-piece connected to said spring, and having a lip or flange extending between the platen and its frame and held in place thereby, substantially as set forth.

- GEORGE KENNEDY. ROBERT KENNEDY. Witnesses: JOHN BROWN,

Jam. 0. MAOLEOD. 

